Release 4.14 arch/sparc/prom/misc_64.c

Directory: arch/sparc/prom
// SPDX-License-Identifier: GPL-2.0
/*
 * misc.c:  Miscellaneous prom functions that don't belong
 *          anywhere else.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/module.h>

#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/ldc.h>



static int prom_service_exists(const char *service_name)
{
	unsigned long args[5];

	args[0] = (unsigned long) "test";
	args[1] = 1;
	args[2] = 1;
	args[3] = (unsigned long) service_name;
	args[4] = (unsigned long) -1;

	p1275_cmd_direct(args);

	if (args[4])
		return 0;
	return 1;
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 84 100.00% 3 100.00%
Total 84 100.00% 3 100.00%



void prom_sun4v_guest_soft_state(void)
{
	const char *svc = "SUNW,soft-state-supported";
	unsigned long args[3];

	if (!prom_service_exists(svc))
		return;
	args[0] = (unsigned long) svc;
	args[1] = 0;
	args[2] = 0;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 60 100.00% 2 100.00%
Total 60 100.00% 2 100.00%

/* Reset and reboot the machine with the command 'bcommand'. */


void prom_reboot(const char *bcommand)
{
	unsigned long args[4];

#ifdef CONFIG_SUN_LDOMS
	if (ldom_domaining_enabled)
		ldom_reboot(bcommand);
#endif
	args[0] = (unsigned long) "boot";
	args[1] = 1;
	args[2] = 0;
	args[3] = (unsigned long) bcommand;

	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 58 80.56% 4 80.00%
Linus Torvalds (pre-git) 14 19.44% 1 20.00%
Total 72 100.00% 5 100.00%

/* Forth evaluate the expression contained in 'fstring'. */


void prom_feval(const char *fstring)
{
	unsigned long args[5];

	if (!fstring || fstring[0] == 0)
		return;
	args[0] = (unsigned long) "interpret";
	args[1] = 1;
	args[2] = 1;
	args[3] = (unsigned long) fstring;
	args[4] = (unsigned long) -1;

	p1275_cmd_direct(args);
}
Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 56 67.47% 3 75.00%
Linus Torvalds (pre-git) 27 32.53% 1 25.00%
Total 83 100.00% 4 100.00%


EXPORT_SYMBOL(prom_feval);

/* Drop into the prom, with the chance to continue with the 'go'
 * prom command.
 */


void prom_cmdline(void)
{
	unsigned long args[3];
	unsigned long flags;

	local_irq_save(flags);

#ifdef CONFIG_SMP
	smp_capture();
#endif

	args[0] = (unsigned long) "enter";
	args[1] = 0;
	args[2] = 0;

	p1275_cmd_direct(args);

#ifdef CONFIG_SMP
	smp_release();
#endif

	local_irq_restore(flags);
}

Contributors
Person Tokens Prop Commits CommitProp
Linus Torvalds (pre-git) 39 52.70% 3 50.00%
David S. Miller 33 44.59% 2 33.33%
Ingo Molnar 2 2.70% 1 16.67%
Total 74 100.00% 6 100.00%

/* Drop into the prom, but completely terminate the program.
 * No chance of continuing.
 */


void notrace prom_halt(void)
{
	unsigned long args[3];

#ifdef CONFIG_SUN_LDOMS
	if (ldom_domaining_enabled)
		ldom_power_off();
#endif
again:
	args[0] = (unsigned long) "exit";
	args[1] = 0;
	args[2] = 0;
	p1275_cmd_direct(args);
	goto again; /* PROM is out to get me -DaveM */
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 47 74.60% 4 66.67%
Linus Torvalds (pre-git) 16 25.40% 2 33.33%
Total 63 100.00% 6 100.00%



void prom_halt_power_off(void)
{
	unsigned long args[3];

#ifdef CONFIG_SUN_LDOMS
	if (ldom_domaining_enabled)
		ldom_power_off();
#endif
	args[0] = (unsigned long) "SUNW,power-off";
	args[1] = 0;
	args[2] = 0;
	p1275_cmd_direct(args);

	/* if nothing else helps, we just halt */
	prom_halt();
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 45 75.00% 3 75.00%
Michael Weber 15 25.00% 1 25.00%
Total 60 100.00% 4 100.00%

/* Get the idprom and stuff it into buffer 'idbuf'.  Returns the
 * format type.  'num_bytes' is the number of bytes that your idbuf
 * has space for.  Returns 0xff on error.
 */


unsigned char prom_get_idprom(char *idbuf, int num_bytes)
{
	int len;

	len = prom_getproplen(prom_root_node, "idprom");
	if ((len >num_bytes) || (len == -1))
		return 0xff;
	if (!prom_getproperty(prom_root_node, "idprom", idbuf, num_bytes))
		return idbuf[0];

	return 0xff;
}

Contributors
Person Tokens Prop Commits CommitProp
Linus Torvalds (pre-git) 66 100.00% 1 100.00%
Total 66 100.00% 1 100.00%



int prom_get_mmu_ihandle(void)
{
	phandle node;
	int ret;

	if (prom_mmu_ihandle_cache != 0)
		return prom_mmu_ihandle_cache;

	node = prom_finddevice(prom_chosen_path);
	ret = prom_getint(node, prom_mmu_name);
	if (ret == -1 || ret == 0)
		prom_mmu_ihandle_cache = -1;
	else
		prom_mmu_ihandle_cache = ret;

	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
Linus Torvalds (pre-git) 53 85.48% 2 50.00%
David S. Miller 6 9.68% 1 25.00%
Andres Salomon 3 4.84% 1 25.00%
Total 62 100.00% 4 100.00%



static int prom_get_memory_ihandle(void)
{
	static int memory_ihandle_cache;
	phandle node;
	int ret;

	if (memory_ihandle_cache != 0)
		return memory_ihandle_cache;

	node = prom_finddevice("/chosen");
	ret = prom_getint(node, "memory");
	if (ret == -1 || ret == 0)
		memory_ihandle_cache = -1;
	else
		memory_ihandle_cache = ret;

	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
Linus Torvalds (pre-git) 64 95.52% 2 66.67%
Andres Salomon 3 4.48% 1 33.33%
Total 67 100.00% 3 100.00%

/* Load explicit I/D TLB entries. */


static long tlb_load(const char *type, unsigned long index,
		     unsigned long tte_data, unsigned long vaddr)
{
	unsigned long args[9];

	args[0] = (unsigned long) prom_callmethod_name;
	args[1] = 5;
	args[2] = 1;
	args[3] = (unsigned long) type;
	args[4] = (unsigned int) prom_get_mmu_ihandle();
	args[5] = vaddr;
	args[6] = tte_data;
	args[7] = index;
	args[8] = (unsigned long) -1;

	p1275_cmd_direct(args);

	return (long) args[8];
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 98 78.40% 1 50.00%
Linus Torvalds (pre-git) 27 21.60% 1 50.00%
Total 125 100.00% 2 100.00%



long prom_itlb_load(unsigned long index,
		    unsigned long tte_data,
		    unsigned long vaddr)
{
	return tlb_load("SUNW,itlb-load", index, tte_data, vaddr);
}

Contributors
Person Tokens Prop Commits CommitProp
Linus Torvalds (pre-git) 21 72.41% 2 66.67%
David S. Miller 8 27.59% 1 33.33%
Total 29 100.00% 3 100.00%



long prom_dtlb_load(unsigned long index,
		    unsigned long tte_data,
		    unsigned long vaddr)
{
	return tlb_load("SUNW,dtlb-load", index, tte_data, vaddr);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 20 68.97% 1 50.00%
Linus Torvalds (pre-git) 9 31.03% 1 50.00%
Total 29 100.00% 2 100.00%



int prom_map(int mode, unsigned long size,
	     unsigned long vaddr, unsigned long paddr)
{
	unsigned long args[11];
	int ret;

	args[0] = (unsigned long) prom_callmethod_name;
	args[1] = 7;
	args[2] = 1;
	args[3] = (unsigned long) prom_map_name;
	args[4] = (unsigned int) prom_get_mmu_ihandle();
	args[5] = (unsigned int) mode;
	args[6] = size;
	args[7] = vaddr;
	args[8] = 0;
	args[9] = paddr;
	args[10] = (unsigned long) -1;

	p1275_cmd_direct(args);

	ret = (int) args[10];
	if (ret == 0)
		ret = -1;
	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 112 70.89% 2 66.67%
Linus Torvalds (pre-git) 46 29.11% 1 33.33%
Total 158 100.00% 3 100.00%



void prom_unmap(unsigned long size, unsigned long vaddr)
{
	unsigned long args[7];

	args[0] = (unsigned long) prom_callmethod_name;
	args[1] = 4;
	args[2] = 0;
	args[3] = (unsigned long) prom_unmap_name;
	args[4] = (unsigned int) prom_get_mmu_ihandle();
	args[5] = size;
	args[6] = vaddr;

	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 64 73.56% 2 66.67%
Linus Torvalds (pre-git) 23 26.44% 1 33.33%
Total 87 100.00% 3 100.00%

/* Set aside physical memory which is not touched or modified
 * across soft resets.
 */


int prom_retain(const char *name, unsigned long size,
		unsigned long align, unsigned long *paddr)
{
	unsigned long args[11];

	args[0] = (unsigned long) prom_callmethod_name;
	args[1] = 5;
	args[2] = 3;
	args[3] = (unsigned long) "SUNW,retain";
	args[4] = (unsigned int) prom_get_memory_ihandle();
	args[5] = align;
	args[6] = size;
	args[7] = (unsigned long) name;
	args[8] = (unsigned long) -1;
	args[9] = (unsigned long) -1;
	args[10] = (unsigned long) -1;

	p1275_cmd_direct(args);

	if (args[8])
		return (int) args[8];

	/* Next we get "phys_high" then "phys_low".  On 64-bit
         * the phys_high cell is don't care since the phys_low
         * cell has the full value.
         */
	*paddr = args[10];

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 145 84.30% 2 66.67%
Linus Torvalds (pre-git) 27 15.70% 1 33.33%
Total 172 100.00% 3 100.00%

/* Get "Unumber" string for the SIMM at the given
 * memory address.  Usually this will be of the form
 * "Uxxxx" where xxxx is a decimal number which is
 * etched into the motherboard next to the SIMM slot
 * in question.
 */


int prom_getunumber(int syndrome_code,
		    unsigned long phys_addr,
		    char *buf, int buflen)
{
	unsigned long args[12];

	args[0] = (unsigned long) prom_callmethod_name;
	args[1] = 7;
	args[2] = 2;
	args[3] = (unsigned long) "SUNW,get-unumber";
	args[4] = (unsigned int) prom_get_memory_ihandle();
	args[5] = buflen;
	args[6] = (unsigned long) buf;
	args[7] = 0;
	args[8] = phys_addr;
	args[9] = (unsigned int) syndrome_code;
	args[10] = (unsigned long) -1;
	args[11] = (unsigned long) -1;

	p1275_cmd_direct(args);

	return (int) args[10];
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 123 79.35% 1 33.33%
Linus Torvalds (pre-git) 32 20.65% 2 66.67%
Total 155 100.00% 3 100.00%

/* Power management extensions. */


void prom_sleepself(void)
{
	unsigned long args[3];

	args[0] = (unsigned long) "SUNW,sleep-self";
	args[1] = 0;
	args[2] = 0;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 32 72.73% 1 50.00%
Linus Torvalds (pre-git) 12 27.27% 1 50.00%
Total 44 100.00% 2 100.00%



int prom_sleepsystem(void)
{
	unsigned long args[4];

	args[0] = (unsigned long) "SUNW,sleep-system";
	args[1] = 0;
	args[2] = 1;
	args[3] = (unsigned long) -1;
	p1275_cmd_direct(args);

	return (int) args[3];
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 53 81.54% 1 50.00%
Linus Torvalds (pre-git) 12 18.46% 1 50.00%
Total 65 100.00% 2 100.00%



int prom_wakeupsystem(void)
{
	unsigned long args[4];

	args[0] = (unsigned long) "SUNW,wakeup-system";
	args[1] = 0;
	args[2] = 1;
	args[3] = (unsigned long) -1;
	p1275_cmd_direct(args);

	return (int) args[3];
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 53 81.54% 1 50.00%
Linus Torvalds (pre-git) 12 18.46% 1 50.00%
Total 65 100.00% 2 100.00%

#ifdef CONFIG_SMP


void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg)
{
	unsigned long args[6];

	args[0] = (unsigned long) "SUNW,start-cpu";
	args[1] = 3;
	args[2] = 0;
	args[3] = (unsigned int) cpunode;
	args[4] = pc;
	args[5] = arg;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 59 75.64% 2 50.00%
Linus Torvalds (pre-git) 19 24.36% 2 50.00%
Total 78 100.00% 4 100.00%



void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg)
{
	unsigned long args[6];

	args[0] = (unsigned long) "SUNW,start-cpu-by-cpuid";
	args[1] = 3;
	args[2] = 0;
	args[3] = (unsigned int) cpuid;
	args[4] = pc;
	args[5] = arg;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 78 100.00% 2 100.00%
Total 78 100.00% 2 100.00%



void prom_stopcpu_cpuid(int cpuid)
{
	unsigned long args[4];

	args[0] = (unsigned long) "SUNW,stop-cpu-by-cpuid";
	args[1] = 1;
	args[2] = 0;
	args[3] = (unsigned int) cpuid;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 53 94.64% 2 66.67%
Linus Torvalds (pre-git) 3 5.36% 1 33.33%
Total 56 100.00% 3 100.00%



void prom_stopself(void)
{
	unsigned long args[3];

	args[0] = (unsigned long) "SUNW,stop-self";
	args[1] = 0;
	args[2] = 0;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 32 72.73% 1 50.00%
Linus Torvalds (pre-git) 12 27.27% 1 50.00%
Total 44 100.00% 2 100.00%



void prom_idleself(void)
{
	unsigned long args[3];

	args[0] = (unsigned long) "SUNW,idle-self";
	args[1] = 0;
	args[2] = 0;
	p1275_cmd_direct(args);
}

Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 32 72.73% 1 50.00%
Linus Torvalds (pre-git) 12 27.27% 1 50.00%
Total 44 100.00% 2 100.00%



void prom_resumecpu(int cpunode)
{
	unsigned long args[4];

	args[0] = (unsigned long) "SUNW,resume-cpu";
	args[1] = 1;
	args[2] = 0;
	args[3] = (unsigned int) cpunode;
	p1275_cmd_direct(args);
}
Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 42 75.00% 1 50.00%
Linus Torvalds (pre-git) 14 25.00% 1 50.00%
Total 56 100.00% 2 100.00%

#endif
Overall Contributors
Person Tokens Prop Commits CommitProp
David S. Miller 1394 68.87% 9 37.50%
Linus Torvalds (pre-git) 595 29.40% 8 33.33%
Michael Weber 15 0.74% 1 4.17%
Sam Ravnborg 8 0.40% 1 4.17%
Andres Salomon 6 0.30% 1 4.17%
Pete Zaitcev 2 0.10% 1 4.17%
Ingo Molnar 2 0.10% 1 4.17%
Adrian Bunk 1 0.05% 1 4.17%
Greg Kroah-Hartman 1 0.05% 1 4.17%
Total 2024 100.00% 24 100.00%
Directory: arch/sparc/prom

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
David S. Miller	84	100.00%	3	100.00%
Total	84	100.00%	3	100.00%
cregit-Linux how code gets into the kernel

Release 4.14 arch/sparc/prom/misc_64.c

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